Frequencies for first 10,000 rows of rx2v2c4 variable in namcs2006 dataset : for rx2, | level 2 of | multum drug | category #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,983 99.83 99.83 066 | 17 0.17 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016